The correct answer is C) Capitalists let supply and demand set prices; guild masters regulated prices.
The following was a difference between capitalist entrepreneurs and guild masters: Capitalists let supply and demand set prices; guild masters regulated prices.
Capitalist were entrepreneurs that took risks when invested their money. They let supply and demand established the prices of good an services. The free market was ideal for them. Guild Masters had different rules. They were more strict on the quality of their products, put more attention to details and charged different prices according to the quality of work and time elaborating it.